Walter ferris



March 10, 1925.

W,- FERRIS ROPE THRUSTING SHOVEL 2 Sheets-Sheet 1 Original Filed Aug. 5, 1921- EN \Imm INVENTOR.

W94 TEE FER/51s 1 BY ATTORNEY.

W. FERRIS ROPE THRUSTING sHovEp March 10, 1925.

Original Filed Aug. 5, 1921 2 Sheets-Sheet 2 ATTORNEY.

named Mar. 10, 1925.;

v Re. 16,022

WALTER FERRIS, O'F MILWAUKEE, WISCONSIN. ASSIGNOR TO BUGYBUS GOMPANY, OF-

SOUTH 'MILWAUKEE, WISCONSIN, A CQRZPORATIO'N OF WISCONSIN.

ROPE-THBUSTIHG SHOVEL.

Original No. 1,443,353, dated. January 80, 1923, Serial No. 489,407, filed August 3, 1921. ,Application for reissue filed October 4, 1924. Serial No. 741,774.

[0 all to ham it may concern:

Be it known that I, WALTER FERRIs, a citivzen of the United States, residing at Milwaukee, .in the county of lililwaukee and State of Visconsin, have invented a certain new and useful Improvement in Rope- Thrusting Shovels, of which .the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to power excavators, and more particularly, to-power shovels of that type in which the. dipper handle is. mounted upon an adjustable pivot movable with respect to the boom.

The general aim of the present invention is the provision of a simple and improved device for effecting and controlling the movement of the pivotal support for the dipper handle.

A more specific object is the provision of a simple and improved form of dipper shifting device, capable of advantageous use in this type of shove-l irrespective of the character of prime mover with'which the shovel may be provided.

Another object is the provision of a novel arrangementof parts, whereby the working tension in the dipper hoisting cable may be utilized in effecting a shifting movement of the pivotal support for thedipper handle.

Another object is the provision of an improved dippershifting device in which asingle cable amociated with the prime mover may be employed for effecting a shifting'of the. dipper handle independently of the hoisting action of the hoist gear.

Another object is the provision of a dipper shifting device that may be operated andcontrolled from the hoistingand dragline drums, such as are ordinarily provided in certain types of power excavators.

Other objects and advantages will later appear.

Two embodiments of the invention are il-' lustrated in the accompanying drawings, in which:

vFigure 1 .is a side elevation of a power shovel embodyingthe novel features of the present invention.

Figure 2 is a detail view on a larger scale clutch and brake mechanisms of any standard or approved construction.

The shovel selected for. illustration includes a wheeled truck 10, provided with a turntable 11, supporting a rotatable plat-f form 12 in the usual manner. winch 13 is mounted upon thep-latform-l The hoisting winch is driven from any s able prime mover (not shown) throng appropriate gearing, a portion of'whicl' 13 shown at 14. The hoisting winch includes a" main drum 15' and auxiliary drum 16, such, for instance, as are commonly employed as hoisting and dragline drums, respectively, in some well known types of excavators. These drums are mounted for inde endent rotation, each being controlled b in ividual not shown) A boom 17 is pivotally mounted, as at 18, upon the platform 12. The boom 17 preferably comprises a pair of longitudinal channel bars'19 rigidl secured together in spaced relation with t eir flanges turned outwardly. The boom is supported in the usual manner by the cable 21 and sheaves 22. A dipper 23 of standard construction is carried by: the

boom. The dipper is provided with the,

usual dipper handle 24: rigidly connected A hoisting therewith and mounted for swingingmovement about a pivot 25. The pivot 25 is in the form of a pin or shaft carried by the carriage 26 of any appropriate construction mounted for movement in a suitable guideway 27 secured upon the'boom 17. The

guideway 27 is made up of a pair of channel bars 27' extending between and secured to the inner faces of the channel bars 19. The 4 flanges 28 of the bars 27' are arranged to extend inwardly, thus constituting appropriate tracks or runways for the rollers 29 mounted upon andsupporting the carriage 26. In order to increase the strength and rigidity of the channel-bars 27 a cover plate 30 is preferably employed, secured to the upper flanges28. The construction and arrangement of parts thus far described is old and well known in the art so that a further or more detailed description thereof is deemed unnecessary.

As above pointed. out, the present invention has to do with the provision of novel shovel shown, however, a cable-31, having one end wrapped about the auxiliary drum 16, is connected with the carriage 26, as at 32. This cable is preferably passed over a sheave 33 mounted, as at 34, upon the end of one of the channel bars 27. The arrangement is such that when the cable 31 is drawn in under theaction of the drum' 16, the carriage 26, together with the pivot and dipper handle 24, is shifted in one direction, preferably inwardly. Yarious provisions may be-made for opposing the tension in cable 31 so as to shift the dip per handle 24 in the other direction when this cable is paid out. In this instance, the

tension in the dipper hoisting cable 35 is utilized for this purpose. The hoistinlg cable may be arranged in various ways wit this end in vview. In the shovel shown,

however, this cable 35 is connected with the hoisting drum 15 in the usual manner and extends from the drum 15 over a sheave 36, preferably mounted adjacent the outer end of the boom 17, through a padlock sheave 37, connected with the dipper 23, the other end of the cablebeing wrapped about and anchored upon a drum 38. A second drum 38, preferably'of smaller diameter than the drum 38, is secured thereto and connected with the carriage 26 by means of a cable 35, having one end connected to the carriage and the other end wrapped about the drum 38, The cable 35 is thus made to support the dipper and the resulting tension therein is made to oppose the tension in the cable 31. by reason of the connection of cable 35 with the dipper handle through the medium of the drums 38 and 38 and the cable 35.

The cable 35, under the action of the hoisting drum 15 performs the usual functions of raising and lowering thedipper and swinging the dipper handle about the pivot 25. In addition, however, the tension in this cable is made to oppose the tension in the cable 31,so that when the drum 16 is rotated to pay out cable 31, thedipper supporting pivot 25 and dipper are'shifted in a direction opposite to that in which they releasing the drum 16.

to the boom 17 scribed, a drum controlled cable 31' is con- 1 are movedwhen this cable 31 is drawn in. Thus, in the shovel illustrated, the carriage 26 is always under the control of the drum 16 and the dipper handle pivot 25 may be shifted in either direction along the guideway 27 without requiring rotation of the hoisting drum. Furthermore, the dipper may be raised or lowered at will by the hoisting drum 15 in the usual manner.

To illustrate the operation of the shovel described, assume that the dipper is in the lower initial digging position, such as illustrated in dotted lines in Figure 1, and that the drum 16 is held by its brake against rotation. Upon. rotation of the hoisting drum 15 in a clockwise direction, the hoisting cable 35 is drawn in, the dipper is raised, and the dipper handle swung about the pivot 25. As long as the drum 16 is held against rotation, theW-arriage 26 and pivot '25 are held against outward movement along the guideway, 27. As the digging progresses and it is desired to advance the: effective swing of the dipper further into the bank, this is accomplished by releasing the drum 16 so as to pay out the cable 31 to the desired extent. mits the carriage 26 and pivot 25 to shift outwardly along the guideway 27 under the influence of the tension in thecable 35 so that the dipper handle is moved outward-l and the effective swing of the dipper is ad vanced correspondingly. To return the pivot 25, and hence the dipper handle, to thei'nner position,'it is only necessary to rotate the drum 16 in a clockwise direction so as to draw in the cable 31. This action forces the carriage 26 and pivot 25 inwardly against the influence of the tension in the hoisting cable 35,

When the digging stroke has been com pleted and thedippgr is clear of the bank. the dipper may be readily shifted to an ex This per- I treme outward position, such as shown in full lines in Figure 1, and such as might be required for dumping-purposes, by merely The'pivot 25 and dipper are thus advanced in the manner above described. To return the dipper to lower position for a fresh bite it is only necessary to release the. hoisting drum 15, and to shift the pivot rearwardly it is only necessary to rotate the drum 16 in-a clockwise direction. a

In the arrangement shown in Figure 5, the dipper handle 24' is pivotally supported, as at 25, on a carriage 26 reci rocallv mounted'in a horizontal guideway 2 fixed As in the shovel above denected with the carriage 26 to shift the carriage inwardly along the guideway when this cable is drawn in, and the tension in the hoisting cable 35 is utilized to shift the carriage outwardly when cable 31 is paid out. In this instance, however, the hoisting cable passes over a sheave 38' around a sheave 39 carried by a bracket 40 secured to the carriage and having itsfian'd fixed, as at era y on the guides Various changes may be made in-the embodiments of the invention above described,-

without departing from or sacrificing any of the advantages of the invention as defined in the following claims. The two alterna the methods of utilizing the tension in the hoisting cable to shift the dipper handle outwardly, illustrated in Figures 2 and 5, are characterized bythe fact that in each the hoisting cable is associated withthe handle at a fixed point thereon to shift the handle, as contrasted with the rolling association furnished by a rack and pinion, or by a rope wound arou-nda drum and anchored at its ends to the handle, or by any other form of rolling association. v

I claim: 1. In a power shovel, the combination of .a boom, a dipper and dipper handle, a pivotal-su'pport therefor movable relative to said boom, a hoisting cable connected adjacent the' free end of said handle to swing said handle and adjacent the pivotal support to shift said support, and means for controlling the position ofsaid support relative to the boom.

2. In a power shovel, the combination of a boom, a dipper and dipper handle, a pivotal support therefor movable relative .to said boom, a hoisting cable connected adjacent the free end of said handle to swing said handle and adjacent the pivotal support to shift said support, and means including a line of cable associated with said support for controlling the position of said support.

P. In a power shovel the combination with excavating means including a dipper and dipper handle and a pivotal support for said handle movable substantially horizontally, of means actuated by the weight of said excavating means to move said support in one direction only in any position of said support, and means for controlling such movement and for moving said support in the other direction.

4. A power shovel having a dipper and dipper handle, a pivotal shiftable support for said handle, a hoisting gear operable to swing said dipper about said support and constituting the sole actuating means for shifting said support in one direction only, in any position thereof. and means for con-. trolling'the position of said support.

A power shovel having a dipper and per handle, a pivotal shiftable sup ort for said handle, a hoisting gear opera e to swing said dipper about said support and constituting t e sole actuating means for shifting said sup ort in one direction only, in any position tiereof, and means includtion of said support.

6. A wer shovel having a dipper and dipper andle, a pivotal shiftable support for said handle, means including a line of cable associated with said dipper and di per handle adjacent said support for shif ting said support in one direction only when said cable is drawn in, and a dipper hoisting cable responsive to a release of tension in said cable for shifting said support in the other direction when said first named cable is paid out. i

7. A power shovel having a dipper and dipper handle, a pivotal shiftable support for said handle, means including a line of cable for shifting said sup ort in one direction when said line of ca le is drawn in, and means including a second line of cable operable by the weight of the dipper in any position of saidsupport for shifting said support in another direction only when said M v first named line of cable is paid out.

8. A power shovel having a dipper and dipper handle, a pivotal shiftable support for said handle, means including a line of cable for shifting said support in one direction, and means including a hoisting cable for raising and lowering said dipper and for shifting said support in another direction only, independently of whether said dipper is being raised or lowered.

9. A power shovel having a hoisting drum and an auxiliary drum, a dipper and dipper handle, a pivotal shiftable support for said handle, a cable'associated with said dipper handle adjacent said support and adjacent said dipper and connected with said hoisting drum for raising and lowering said dipper and for shifting said support, and a cable connected with said auxiliary drum and with said support for controlling the position of said support.

10. .A power shovel having a hoisting drum and an auxiliary drum, a dipper and dipper handle, a pivotal 'shiftable support for saidhandle, a line of cable connected with said hoisting drum and with said han- "direction.

1 1. A (power shovel having a hoisting drum an an auxiliary drum, a dipper and dipper handle, a pivotal shiftable support for said handle, a line of cable connected ing a line of cable for controlling the posiwith said hoisting drum and with said halndle adjacent the dipper and support for shifting said support, and a line of cable associated with said auxiliary drum for controlling the position of said support.

12. A power shovel having a hoisting drum, a. dipper and dipper handle, a pivotal shiftable support for said handle, a line of cable connected With said hoisting drum and with said handle adjacent the dipper and supportfor shifting said support, and means for controlling the position of said support.

13. A power shovel having a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, two drums mounted on sa-i boom for rotation in unison, a dipper hoisting cable connected with one of said drums, means including a cable connected with the other ofsaid drums and associated with said dipper handle through which said handle is biased toward shifting movement in one direction by the tension in said hoisting cable, and means for controlling such shifting movement and for shiftin said handle in another direction.

14. power shovel having a boom, a dipper and dipper handle mounted thereon f or swinging and shifting movements, means 1ncluding a cable for shifting said handle in one direction, means including a cable for shifting said handle in another direction, a dipper hoisting cable, and a drum havin portions of different diameters connect respectively with said hoisting cable and mounted thereon, a. dipper and dipper han-- '(lle mounted on said boom for swinging and handle inwardly.

one of said other cableswherebythe working tension in said hoisting cable is utilized to shift said dipper handle.

15. A power shovel having a boom, two interconnected drum'sof different diameters shifting movements, a dipper hoisting cable connected withthe larger of said drums, a second cable connected with the smaller of said drums and associated with said dipper handle to shift said handle outwardly, and means including a third cable associated with said dipper handle forshifting said 16. In a power shovel the combination of an inclined boom, a dipper and dipper handle, a pivotal support therefor movable transversely of said boom, :1 dipper'hoisting cable for swinging said dipper about said support and for moving said support in one direction only, independently of t heangular relation between said dipper handle and boom, and means for controlling such movement and for moving said support in the other direction.

17 In a wer shovel the combination of a boom, a ipper and dipper handle, a pivotal supporttherefor movable relative to said boom means including a dipper hoist-. ing cable 1 or moving said support in one direction only, and means operable to move said support in the'other direction only but cable.

18. In a power shovel the combination of an inclined boom, a dipper and dipper handle, a. pivotal support for said handle mounted on said boom for substantially horizontal movement,- a dipper hoisting cable, connections between said cable and support for moving said support in one direction only, and means including another cable for shifting said support in another direction.

19. In a power shovel the combination of an inclined boom, a dipper and dipper handle, a pivotal support for said handle movable substantially horizontal-1y, a, dipper hoisting cable, connections between said cable and said support for moving said support outwardly only, and means for controlling such movement and for moving said support inwardly.

20.In a power shovel the combination of a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, a dipper hoisting cable operatively associated with the outer end of said handle .for raising and lowering said dipper, and with the inner end of said handle at a fixed point thereon for shifting said handle outwardly only, and distinct means for controlling such shifting movement and for shiftin said handle inwardly.

21. n a power shovel the combination of a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, a dipper hoisting {cable operatively associated with said dipper and dipper handle at a fixed point thereon to swing said dipper and dipper handle andat another ments, a dipper hoisting cable operatively associated withsaid dipper and dipper handie at a fixed point thereon to swing said dipper and dipper handle and at another fixed point thereon to shift said dipper and dipper handle outwardly only, and a second cable having an operative association with szpdldip er and dipper handle, independent 0 tie iifting association of the hoisting cable, for cont-rollingv such shifting movej ment and for shifting said dipper andzdipper handle inwardl 1 g 23. In a power shovel the combination of a boom, a dipper and dipper handle mounted thereon, a hoisting cable. passing over said boom and associated with the inner end of said dipper handle to shift said handle outwardly, and an independently operated cable having an operative association with said dipper and'dipper handle, independent of the shifting association of. the hoisting cable, for controlling such shifting movement and for shifting said dipper and dipper handle inwardly.

24. In a power shovel the combination of a boom, a dipper and dipper handle mounted thereon for swinging and shifting move-- ments, hoisting means associated with the outer end of said dipper handle for raising and lowering said dipper, said means including a line of cable pulling on the inner end of said dipperhandle to maintain an outward crowd thereon, and means including a second line of cable pulling directly on said dipper handle to eflect and control the shifting movement of said handle.

25. In a power shovel the combination of a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, a hoisting cable pulling upwardly on the outer portion of'said handle to support and operate the dipper and pulling outwardly on the inner end of said handle to maintain an outward crowd thereon, and means including aseparately operated cable acting through means independent of those through which the hoisting cable exerts its outward pull, to oppose the outward pull of said hoisting cable to control the shifting of said handle.

26. A power shovel having a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, two drumsmounted on said boom for rotation in unison, a dipper hoisting cable connected with one of said drums, means ,associated with the other of said drums and with said dipper handle through which said handle is biased toward shifting movement in one direction by the tension in said hoisting cable, and means for controlling such shifting movement and for shifting said handle in another direction.

In witness whereof, I hereunto subscribemy name this 2nd day of October, 1924.

WALTER FERRIS. 

